The shooter is fully to blame for putting bullets into these kids....he was a cold blooded killer when he planned this over a long period of time....and he was that the day he went to that 'chosen' school to kill those specific students attending there...and he remains that after carrying out his rampage of death and destruction.
I’m wondering if he was on drugs or withdrawing from drugs. One of the common threads that is overlooked in looking at these school massacres. Or mass shooting anywhere — mall, grocery store, gas stations, anywhere..........
http://www.freerepublic.com/focus/f-news/3633192/posts
Link for Texas school with armed (conceal and carry) teachers.